service: Support cap_add

roles/service/meta/argument_specs.yaml

@@ -239,6 +239,13 @@ argument_specs:
         required: false
         default: {}
 
+      service_container_add_capabilities:
+        description: List of capabilities to add to the service container
+        type: list
+        required: false
+        default: []
+        elements: str
+
       service_database_type:
         description:
           - Database type to set up.
@@ -400,6 +407,12 @@ argument_specs:
             type: dict
             required: false
             default: {}
+          add_capabilities:
+            description: List of capabilities to add to the container
+            type: list
+            required: false
+            default: "{{ service_container_add_capabilities }}"
+            elements: str
           secrets:
             description:
               - >